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Take five - Type VII secretion systems of Mycobacteria
Edith N G Houben1, Konstantin V Korotkov2, Wilbert Bitter1
1VU University, Amsterdam, The Netherlands; VU University Medical Center, Amsterdam, The Netherlands.
Biochimica Et Biophysica Acta
|November 23, 2013
Summary
Mycobacteria utilize type VII secretion (T7S) systems for protein export. Understanding these essential systems in pathogens like Mycobacterium tuberculosis is key for developing new drugs and vaccines.
Area of Science:
- Microbiology
- Bacterial Pathogenesis
- Molecular Biology
Background:
- Mycobacteria possess complex cell envelopes and rely on type VII secretion (T7S) systems for protein transport.
- Pathogenic species, including Mycobacterium tuberculosis, utilize multiple T7S systems (ESX-1 to ESX-5), with several being crucial for virulence and survival.
Purpose of the Study:
- To review recent advancements in understanding T7S systems in mycobacteria.
- To highlight the importance of T7S for pathogen success and potential therapeutic target identification.
Main Methods:
- Literature review of recent findings on T7S substrates and secretion motifs.
- Analysis of emerging data on secretion mechanisms and structural components.
Main Results:
- Significant progress in identifying T7S substrates and a conserved secretion motif.
- Initial steps in elucidating the secretion mechanism and structural details of T7S components.
Conclusions:
- Recent findings provide a foundation for a working model of the T7S machinery.
- Further research into T7S is essential for understanding mycobacterial pathogenesis and developing novel interventions.
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